Remove unused AppKeepAliveService

apps/app_keep_alive_service.cc

-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "apps/app_keep_alive_service.h"
-
-#include "apps/app_lifetime_monitor.h"
-#include "apps/app_lifetime_monitor_factory.h"
-#include "base/message_loop/message_loop.h"
-#include "chrome/browser/lifetime/application_lifetime.h"
-#include "chrome/browser/profiles/profile.h"
-
-namespace apps {
-
-AppKeepAliveService::AppKeepAliveService(content::BrowserContext* context)
-    : context_(context), shut_down_(false) {
-  AppLifetimeMonitor* app_lifetime_monitor =
-      AppLifetimeMonitorFactory::GetForProfile(static_cast<Profile*>(context));
-  app_lifetime_monitor->AddObserver(this);
-}
-
-AppKeepAliveService::~AppKeepAliveService() {}
-
-void AppKeepAliveService::Shutdown() {
-  AppLifetimeMonitor* app_lifetime_monitor =
-      AppLifetimeMonitorFactory::GetForProfile(static_cast<Profile*>(context_));
-  app_lifetime_monitor->RemoveObserver(this);
-  OnChromeTerminating();
-}
-
-void AppKeepAliveService::OnAppStart(Profile* profile,
-                                     const std::string& app_id) {
-  if (profile != context_ || shut_down_)
-    return;
-
-  if (running_apps_.insert(app_id).second)
-    chrome::IncrementKeepAliveCount();
-}
-
-void AppKeepAliveService::OnAppStop(Profile* profile,
-                                    const std::string& app_id) {
-  if (profile != context_)
-    return;
-
-  if (running_apps_.erase(app_id))
-    chrome::DecrementKeepAliveCount();
-}
-
-void AppKeepAliveService::OnAppActivated(Profile* profile,
-                                         const std::string& app_id) {}
-
-void AppKeepAliveService::OnAppDeactivated(Profile* profile,
-                                           const std::string& app_id) {}
-
-void AppKeepAliveService::OnChromeTerminating() {
-  shut_down_ = true;
-  size_t keep_alives = running_apps_.size();
-  running_apps_.clear();
-
-  // In some tests, the message loop isn't running during shutdown and ending
-  // the last keep alive in that case CHECKs.
-  if (!base::MessageLoop::current() ||
-      base::MessageLoop::current()->is_running()) {
-    while (keep_alives--)
-      chrome::DecrementKeepAliveCount();
-  }
-}
-
-}  // namespace apps